2015
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
3013067 |
2396 |
- |
2436 |
= |
-40 |
* |
(17 |
/ |
83) |
= |
-8.19277108 |
4 |
3013070 |
0 |
- |
2485 |
= |
|
* |
(8 |
/ |
83) |
= |
|
5 |
3013071 |
2493 |
- |
2528 |
= |
-35 |
* |
(18 |
/ |
83) |
= |
-7.59036142 |
6 |
3013074 |
2515 |
- |
2552 |
= |
-37 |
* |
(17 |
/ |
83) |
= |
-7.57831325 |
7 |
3013075 |
2520 |
- |
2567 |
= |
-47 |
* |
(14 |
/ |
83) |
= |
-7.92771081 |
8 |
3013078 |
0 |
- |
2586 |
= |
|
* |
(9 |
/ |
83) |
= |
|
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Reeds Creek Elementary
|
-31 |
2016
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
92387 |
2425 |
- |
2436 |
= |
-11 |
* |
(15 |
/ |
92) |
= |
-1.79347826 |
4 |
92390 |
2437 |
- |
2485 |
= |
-48 |
* |
(19 |
/ |
92) |
= |
-9.91304347 |
5 |
92391 |
0 |
- |
2528 |
= |
|
* |
(6 |
/ |
92) |
= |
|
6 |
92394 |
2468 |
- |
2552 |
= |
-84 |
* |
(20 |
/ |
92) |
= |
-18.26086954 |
7 |
92396 |
2508 |
- |
2567 |
= |
-59 |
* |
(15 |
/ |
92) |
= |
-9.6195652 |
8 |
92398 |
2504 |
- |
2586 |
= |
-82 |
* |
(17 |
/ |
92) |
= |
-15.15217386 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Reeds Creek Elementary
|
-55 |
2017
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
95180 |
2386 |
- |
2436 |
= |
-50 |
* |
(14 |
/ |
97) |
= |
-7.2164948 |
4 |
95182 |
2441 |
- |
2485 |
= |
-44 |
* |
(19 |
/ |
97) |
= |
-8.61855667 |
5 |
95184 |
2436 |
- |
2528 |
= |
-92 |
* |
(18 |
/ |
97) |
= |
-17.07216492 |
6 |
95186 |
0 |
- |
2552 |
= |
|
* |
(0 |
/ |
97) |
= |
|
7 |
95188 |
2492 |
- |
2567 |
= |
-75 |
* |
(20 |
/ |
97) |
= |
-15.46391753 |
8 |
95190 |
2557 |
- |
2586 |
= |
-29 |
* |
(16 |
/ |
97) |
= |
-4.78350514 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Reeds Creek Elementary
|
-53 |
2018
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
95346 |
2374 |
- |
2436 |
= |
-62 |
* |
(19 |
/ |
103) |
= |
-11.43689318 |
4 |
95347 |
2377 |
- |
2485 |
= |
-108 |
* |
(14 |
/ |
103) |
= |
-14.67961164 |
5 |
95350 |
2492 |
- |
2528 |
= |
-36 |
* |
(21 |
/ |
103) |
= |
-7.33980582 |
6 |
95351 |
2472 |
- |
2552 |
= |
-80 |
* |
(20 |
/ |
103) |
= |
-15.53398056 |
7 |
95354 |
0 |
- |
2567 |
= |
|
* |
(0 |
/ |
103) |
= |
|
8 |
95355 |
2495 |
- |
2586 |
= |
-91 |
* |
(20 |
/ |
103) |
= |
-17.66990289 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Reeds Creek Elementary
|
-67 |
2019
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
96009 |
2381 |
- |
2436 |
= |
-55 |
* |
(21 |
/ |
111) |
= |
-10.4054054 |
4 |
96010 |
2433 |
- |
2485 |
= |
-52 |
* |
(14 |
/ |
111) |
= |
-6.55855855 |
5 |
96011 |
2390 |
- |
2528 |
= |
-138 |
* |
(16 |
/ |
111) |
= |
-19.89189187 |
6 |
96012 |
2490 |
- |
2552 |
= |
-62 |
* |
(27 |
/ |
111) |
= |
-15.08108107 |
7 |
96013 |
2456 |
- |
2567 |
= |
-111 |
* |
(22 |
/ |
111) |
= |
-21.99999998 |
8 |
96014 |
2503 |
- |
2586 |
= |
-83 |
* |
(11 |
/ |
111) |
= |
-8.22522522 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Reeds Creek Elementary
|
-82 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-31
|
-55
|
-53
|
-67
|
-82
|
-288.0 |
-57.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -3.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -111.6
For the lines, you have the data necessary to plot the chart.